5.9/ #53020006 360 siamesed?

[Twister73]

Just picked up a #53020006 360 shortblock to use as a 408 build. It appears to be the transitional 92' and has the LA type oiling and to the heads and is a roller/spider.
Question is; are the cylinders siamesed???

 

[Jadaharabi]

No.
What you have is the best of both worlds you have the ability to oil the LA heads and run a roller cam or you can run a magnum head on it. That's a good block to build. I would have the block Sonic tested to make sure it'll bore to where you want it.
No 360s were Siamese.

 

[Twister73]

Thanks for verifying that for me. When I have it hot tanked it'll get a sonic check for sure!

 

[rumblefish360]

Thanks for verifying that for me. When I have it hot tanked it'll get a sonic check for sure!

Excellent move with the sonic checking. Do so report back what is found. I have such a block myself. *I Think* it is a ‘94.

MP offered race blocks that are Siamese with the 360 main.